# Touchan - Addeldal - PIPI - ITRDB MORC015 #----------------------------------------------------------------------- # World Data Service for Paleoclimatology, Boulder # and # NOAA Paleoclimatology Program # National Centers for Environmental Information (NCEI) #----------------------------------------------------------------------- # Template Version 3.0 # Encoding: UTF-8 # NOTE: Please cite original publication, online resource and date accessed when using these data, # If there is no publication information, please cite investigator, title, online resource and date accessed. # # Online_Resource: https://www.ncdc.noaa.gov/paleo/study/9642 # Description: NOAA Landing Page of study # Online_Resource: https://www1.ncdc.noaa.gov//pub/data/paleo/treering/chronologies/africa/morc015-noaa.crn # Description: Chronology - NOAA Template File # # Original_Source_URL: https://www1.ncdc.noaa.gov/pub/data/paleo/treering/chronologies/africa/morc015.crn # Description: Chronology - Tucson Decadal File # # Archive: Tree Ring # # Dataset_DOI: # # Parameter_Keywords: ring width #------------------- # Contribution_Date # Date: 2010-10-20 #------------------- # File_Last_Modified_Date # Date: 2018-12-12 #------------------- # Title # Study_Name: Touchan - Addeldal - PIPI - ITRDB MORC015 #------------------- # Investigators: Touchan, R. #------------------- # Description_Notes_and_Keywords # Description: NOAA Template Chronology file added 2018-12-12. #------------------- # Publication # Authors: Ramzi Touchan, Kevin J. Anchukaitis, David M. Meko, Said Attalah, Christopher Baisan, Ali Aloui # Journal_Name: Climate Dynamics # Published_Title: Spatiotemporal drought variability in northwestern Africa over the last nine centuries # Published_Date_or_Year: 2011 # Volume: 37 # Pages: 237-252 # Report_Number: # DOI: 10.1007/s00382-010-0804-4 # Full_Citation: # Abstract: Changes in precipitation patterns and the frequency and duration of drought are likely to be the feature of anthropogenic climate change that will have the most direct and most immediate consequences for human populations. The latest generation of state-of-the-art climate models project future widespread drying in the subtropics. Here, we reconstruct spatially-complete gridded Palmer drought severity index values back to A.D. 1179 over Morocco, Algeria, and Tunisia. The reconstructions provide long-term context for northwest African hydroclimatology, revealing large-scale regional droughts prior to the sixteenth century, as well as more heterogeneous patterns in sixteenth, eighteenth, and twentieth century. Over the most recent decades a shift toward dry conditions over the region is observed, which is consistent with general circulation model projections of greenhouse gas forced enhanced regional subtropical drought. #------------------- # Site_Information # Site_Name: Addeldal # Location: Morocco # Northernmost_Latitude: 35.083 # Southernmost_Latitude: 35.083 # Easternmost_Longitude: -5.466 # Westernmost_Longitude: -5.466 # Elevation: 900 #------------------- # Data_Collection # Collection_Name: MORC015 # Earliest_Year: 1843 # Most_Recent_Year: 2004 # Time_Unit: AD # Notes: #------------------- # Species # Species_Name: Pinus pinaster Aiton # Common_Name: maritime pine # Tree_Species_Code: PIPI #------------------- # Chronology_Information # Chronology: #--------------------- # Variables # variables format: shortname var components: what,material,error,units,season,archive,detail,method, C or N for Char or Numeric data,additional information ## age_CE age,,,year Common Era,,tree ring,,,N, ## trsgi tree ring standardized growth index,,,,,tree ring,composited,standard,N, ## numsamp number of samples,,,count,,tree ring,,,N, # #-------------------- # Data: # Missing_Values: -999 age_CE trsgi numsamp 1843 448 1 1844 524 1 1845 803 1 1846 964 1 1847 1056 1 1848 1080 1 1849 1476 1 1850 1691 1 1851 1340 1 1852 1386 1 1853 1506 1 1854 1222 1 1855 1312 1 1856 1029 1 1857 929 1 1858 819 1 1859 879 1 1860 1186 1 1861 1059 1 1862 914 1 1863 837 1 1864 928 1 1865 1246 1 1866 1285 2 1867 1303 2 1868 1086 3 1869 983 4 1870 939 5 1871 959 5 1872 1101 5 1873 1162 5 1874 1349 6 1875 1114 7 1876 1074 7 1877 1034 10 1878 1000 11 1879 1024 11 1880 1168 11 1881 1155 11 1882 881 11 1883 905 12 1884 965 12 1885 964 13 1886 812 13 1887 816 13 1888 1012 14 1889 1107 14 1890 1158 14 1891 1016 14 1892 1053 14 1893 1054 15 1894 601 16 1895 615 16 1896 700 16 1897 755 16 1898 874 17 1899 895 18 1900 784 18 1901 950 18 1902 1061 18 1903 1043 18 1904 1076 18 1905 1002 18 1906 1005 19 1907 922 19 1908 994 20 1909 903 20 1910 938 20 1911 788 20 1912 800 20 1913 716 20 1914 967 21 1915 1161 21 1916 1138 22 1917 1438 22 1918 1080 22 1919 1105 22 1920 1146 24 1921 929 25 1922 945 25 1923 951 26 1924 910 26 1925 1030 26 1926 941 26 1927 976 27 1928 1011 27 1929 952 27 1930 1064 27 1931 876 29 1932 1243 29 1933 1034 31 1934 969 31 1935 928 33 1936 1038 33 1937 1203 33 1938 976 33 1939 1189 33 1940 1246 34 1941 1261 35 1942 1026 37 1943 911 37 1944 975 37 1945 770 37 1946 860 37 1947 1184 37 1948 1177 37 1949 863 39 1950 743 39 1951 818 39 1952 740 39 1953 729 39 1954 740 39 1955 874 39 1956 844 39 1957 936 39 1958 986 39 1959 996 39 1960 1148 39 1961 1184 39 1962 1072 39 1963 1053 39 1964 1052 39 1965 964 39 1966 940 39 1967 1012 39 1968 938 39 1969 1108 39 1970 986 39 1971 915 39 1972 1030 39 1973 1005 39 1974 959 39 1975 1014 39 1976 1244 39 1977 978 39 1978 1133 39 1979 1064 39 1980 1051 39 1981 976 39 1982 1097 39 1983 1034 39 1984 1091 39 1985 1079 39 1986 1021 39 1987 1066 39 1988 1021 39 1989 934 39 1990 1070 39 1991 1017 39 1992 1173 39 1993 1023 39 1994 1171 39 1995 576 39 1996 860 39 1997 959 39 1998 1028 39 1999 716 39 2000 932 39 2001 1102 39 2002 1030 37 2003 1087 37 2004 837 37